| 方向数据插值方法研究 |
| |
| 引用本文： | 房亮,刘学军,汤国安.方向数据插值方法研究[J].现代测绘,2006,29(1):3-5,9. |
| |
| 作者姓名： | 房亮 刘学军 汤国安 |
| |
| 作者单位： | 1. 西北大学城市与资源学系,陕西,西安,710069
2. 南京师范大学虚拟地理环境教育部重点实验室,江苏,南京,210097 |
| |
| 摘 要： | 方向数据是矢量数据的标量表示,通常标量数据的插值方法不适用于方向数据。本文根据方向数据的特征,把其分解成沿坐标轴的分量,通过对分量数据的插值形成表面,最后合成反算出方向数据,给出了一种对于方向数据的行之有效的插值方法;并用实验进行了验证,对其插值结果和精度进行了统计和分析,取得了较为理想的内插结果。
|
| 关 键 词： | 方向数据 插值 反距离权 标量 |
| 文章编号： | 1672-4097（2006）01-0003-04 |
Research on Interpolation Method of Directional Data |
| |
| Fang Liang,Liu Xuejun,Tang Guoan.Research on Interpolation Method of Directional Data[J].Modern Surveying and Mapping,2006,29(1):3-5,9. |
| |
| Authors: | Fang Liang Liu Xuejun Tang Guoan |
| |
| Abstract: | Because of difference between scalar data and directional data,the interpolation method that is for scalar data are not fit for direction data.In this paper,an interpolation method that is for directional data is proposed.Firstly,the direction data is separated into two axial components,namely eastern direction and northern direction.Then a general interpolation is used to interpolate the axial components into surface.Lastly the two direction components are combined into general direction expression.The method in the paper is validated by practice example and gets better results than direct interpolation in directional data. |
| |
| Keywords: | Directional data Interpolation Inverse distance weighted Scalar data |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
